Recent content by coneheadceo

Sometimes it takes a day away to clear the head and get things lined up right. Thanks guys for the help.. Got it straigthened out now.

Okay so from all of the posts and help I just need some help making this unconfusing. I'm not looking for the answer outright but if you guys could reorder the correct equations so I know how to work through it, I know I can walk through it on my own. I'm feeling like I have a brain fart that is...

and this is one of those where the example in the book is for a flat surface and it does not have a solution in the back.

based on how the question is worded I would assume if the car is going to stay on the road is additional force needed, if it is needed how much and in what direction?

I somewhat follow the coordinate system rewrite but am lost on where you got "the component of normal force contributing, we see that it provides ≈2.5 x 10 3 N" and where do I go from here?

So what changes do I need to make to my equations so I address the problem correctly?

Homework Statement A 1200kg car rounds a dry curve (μ= .6)with a radius of 67 m banked at an angle of 12°. If the car is traveling @ 95 km/hr (26.4 m/s), will a friction force be required? If so how much and in what direction? Homework Equations Fn = mg cos 12° ƩFn sin 12° = m (v^2/r)...

Thank you CWatters! And yes Gab... I am taking a college level intro physics course with an "okay" book. It's been 15 years since I've worked with Physics like this and I'm going to have to review more before diving in. I would have been okay with three objects but four is a bit of a stretch.

Now I'm confused since the answer in the book is 3.2x10^-8 adding 2.4 + 1.67 +1.67 =5.74 x10^-8

You would use pythagorean method... A-----B | / | / C-----D so let's say we call "A" sphere that is the 4th sphere... calculating the force of gravity between A and B would give a result of 1.67*10^-8 using g = G (m1m2/r^2) and the same for A - C using pythagorean...

So do I just use F = (G*m1*m2)/r^2 for each sphere at 90° and F = sin 45°(G*m1*m2)/r^2 for the diagonal sphere and add them all together? doing that I get 3.9 x 10^-8

Homework Statement Four spheres of equal 9.5 kg are located at the corners of a square of length 0.6 m per side. Find the magnitude and direction of the gravitational field on one by the other three spheresHomework Equations gravity = GM/r^2 with G = gravitation constant, M = mass, r = radius...

Homework Statement a pair of fuzzy dice hang from your mirror. While you accelerate from a stop on a horizontal surface to 28 m/s in 6 s, what angle θ does the string make with the vertical? Homework Equations tan θ = Y/X a = ΔV / Δt The Attempt at a Solution Just want a double...

So am I literally taking (9.8 m/s^2)(0.15)= 1.47 m/s^2 to get the acceleration?

Homework Statement A window washer pulls themself upward using a bucket/single pulley system. Their weight with the bucket is 65 Kg. a) How hard must she pull doward to raise herself slowly at a constant speed? b) If they increase the force by 15% what will her accelertion be? Homework...